Wouldn't last long at all :
1. You'd expect never to run out of ammo.
2. You'd expect to be able to run constantly without ever running of breath.
3. The noise would completely unnerve you, especially when you realised you couldn't turn it down.
4. You'd get shot while wondering -
why the teams aren't even
why your squad isn't respawning
why grenades can't kill tanks
why the bad guys don't have red markers over their heads
why you aren't regenerating when you hide
why those idiot american troops are shooting at you
why just one bullet made you fall down and leak blood everywhere
You get the idea
